Initial commit: Headscale management scripts and configuration

- Add headscale binary and configuration files
- Include management scripts for API keys, nodes, and authentication
- Add Docker setup with docker-compose
- Include backup and restore functionality
- Add example scripts for creating API keys and pre-auth keys

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

create_headscale_api_key.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Headscale 的 API 金鑰就像是你進入 Headscale API 世界的通行證。
+# 有了這把鑰匙，只有你能開門進行操作，保證你是被認可的。
+# 用這金鑰就能鎖住 API，防止那些不速之客亂搞。
+
+# 定義變數以便管理
+CONTAINER_NAME="headscale"
+COMMAND="headscale apikeys create"
+EXPIRATION="87600h"  # 等於 10 年
+
+# 執行 Docker 指令來建立 API 金鑰，輸出為 JSON 格式
+echo "Creating API key for Headscale with expiration of $EXPIRATION..."
+response=$(docker exec -it "$CONTAINER_NAME" $COMMAND --expiration "$EXPIRATION" --output json 2>&1)
+
+# 檢查指令是否成功執行
+if [ $? -eq 0 ]; then
+  echo "API key created successfully!"
+  # 嘗試提取 API 金鑰
+  # 簡單檢查響應中是否包含 key 欄位，或者直接提取引號內的內容
+  api_key=$(echo "$response" | grep -o '"[^"]*"' | sed 's/"//g')
+  if [ -n "$api_key" ]; then
+    echo "API Key: $api_key"
+  else
+    echo "Warning: Could not extract API key from response."
+    echo "Raw response: $response"
+  fi
+else
+  echo "Error: Failed to create API key."
+  echo "Error message: $response"
+  exit 1
+fi
+